diff options
Diffstat (limited to 'src/AFC.c')
| -rw-r--r-- | src/AFC.c | 1285 |
1 files changed, 0 insertions, 1285 deletions
diff --git a/src/AFC.c b/src/AFC.c deleted file mode 100644 index db00735..0000000 --- a/src/AFC.c +++ /dev/null @@ -1,1285 +0,0 @@ -/* - * AFC.c - * Contains functions for the built-in AFC client. - * - * Copyright (c) 2008 Zach C. All Rights Reserved. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> - -#include "AFC.h" -#include "iphone.h" -#include "debug.h" - -// This is the maximum size an AFC data packet can be -static const int MAXIMUM_PACKET_SIZE = (2 << 15); - -/** Locks an AFC client, done for thread safety stuff - * - * @param client The AFC client connection to lock - */ -static void afc_lock(afc_client_t client) -{ - debug_info("Locked"); - g_mutex_lock(client->mutex); -} - -/** Unlocks an AFC client, done for thread safety stuff. - * - * @param client The AFC - */ -static void afc_unlock(afc_client_t client) -{ - debug_info("Unlocked"); - g_mutex_unlock(client->mutex); -} - -/** Makes a connection to the AFC service on the phone. - * - * @param device The device to connect to. - * @param port The destination port. - * @param client Pointer that will be set to a newly allocated afc_client_t - * upon successful return. - * - * @return AFC_E_SUCCESS on success, AFC_E_INVALID_ARGUMENT when device or port - * is invalid, AFC_E_MUX_ERROR when the connection failed, or AFC_E_NO_MEM - * when there's a memory allocation problem. - */ -afc_error_t afc_client_new(iphone_device_t device, uint16_t port, afc_client_t * client) -{ - /* makes sure thread environment is available */ - if (!g_thread_supported()) - g_thread_init(NULL); - - if (!device || port==0) - return AFC_E_INVALID_ARGUMENT; - - /* attempt connection */ - iphone_connection_t connection = NULL; - if (iphone_device_connect(device, port, &connection) != IPHONE_E_SUCCESS) { - return AFC_E_MUX_ERROR; - } - - afc_client_t client_loc = (afc_client_t) malloc(sizeof(struct afc_client_int)); - client_loc->connection = connection; - - /* allocate a packet */ - client_loc->afc_packet = (AFCPacket *) malloc(sizeof(AFCPacket)); - if (!client_loc->afc_packet) { - iphone_device_disconnect(client_loc->connection); - free(client_loc); - return AFC_E_NO_MEM; - } - - client_loc->afc_packet->packet_num = 0; - client_loc->afc_packet->entire_length = 0; - client_loc->afc_packet->this_length = 0; - memcpy(client_loc->afc_packet->magic, AFC_MAGIC, AFC_MAGIC_LEN); - client_loc->file_handle = 0; - client_loc->lock = 0; - client_loc->mutex = g_mutex_new(); - - *client = client_loc; - return AFC_E_SUCCESS; -} - -/** Disconnects an AFC client from the phone. - * - * @param client The client to disconnect. - */ -afc_error_t afc_client_free(afc_client_t client) -{ - if (!client || !client->connection || !client->afc_packet) - return AFC_E_INVALID_ARGUMENT; - - iphone_device_disconnect(client->connection); - free(client->afc_packet); - if (client->mutex) { - g_mutex_free(client->mutex); - } - free(client); - return AFC_E_SUCCESS; -} - -/** Dispatches an AFC packet over a client. - * - * @param client The client to send data through. - * @param data The data to send. - * @param length The length to send. - * @param bytes_sent The number of bytes actually sent. - * - * @return AFC_E_SUCCESS on success, or an AFC_E_* error value on error. - * - * @warning set client->afc_packet->this_length and - * client->afc_packet->entire_length to 0 before calling this. The - * reason is that if you set them to different values, it indicates - * you want to send the data as two packets. - */ -static afc_error_t afc_dispatch_packet(afc_client_t client, const char *data, uint32_t length, uint32_t *bytes_sent) -{ - uint32_t offset = 0; - uint32_t sent = 0; - - if (!client || !client->connection || !client->afc_packet) - return AFC_E_INVALID_ARGUMENT; - - *bytes_sent = 0; - - if (!data || !length) - length = 0; - - client->afc_packet->packet_num++; - if (!client->afc_packet->entire_length) { - client->afc_packet->entire_length = (length) ? sizeof(AFCPacket) + length : sizeof(AFCPacket); - client->afc_packet->this_length = client->afc_packet->entire_length; - } - if (!client->afc_packet->this_length) { - client->afc_packet->this_length = sizeof(AFCPacket); - } - // We want to send two segments; buffer+sizeof(AFCPacket) to - // this_length is the parameters - // And everything beyond that is the next packet. (for writing) - if (client->afc_packet->this_length != client->afc_packet->entire_length) { - offset = client->afc_packet->this_length - sizeof(AFCPacket); - - debug_info("Offset: %i", offset); - if ((length) < (client->afc_packet->entire_length - client->afc_packet->this_length)) { - debug_info("Length did not resemble what it was supposed to based on packet"); - debug_info("length minus offset: %i", length - offset); - debug_info("rest of packet: %i\n", client->afc_packet->entire_length - client->afc_packet->this_length); - return AFC_E_INTERNAL_ERROR; - } - - /* send AFC packet header */ - AFCPacket_to_LE(client->afc_packet); - sent = 0; - iphone_device_send(client->connection, (void*)client->afc_packet, sizeof(AFCPacket), &sent); - if (sent == 0) { - /* FIXME: should this be handled as success?! */ - return AFC_E_SUCCESS; - } - *bytes_sent += sent; - - /* send AFC packet data */ - sent = 0; - iphone_device_send(client->connection, data, offset, &sent); - if (sent == 0) { - return AFC_E_SUCCESS; - } - *bytes_sent += sent; - - debug_info("sent the first now go with the second"); - debug_info("Length: %i", length - offset); - debug_info("Buffer: "); - debug_buffer(data + offset, length - offset); - - sent = 0; - iphone_device_send(client->connection, data + offset, length - offset, &sent); - - *bytes_sent = sent; - return AFC_E_SUCCESS; - } else { - debug_info("doin things the old way"); - debug_info("packet length = %i", client->afc_packet->this_length); - - debug_buffer((char*)client->afc_packet, sizeof(AFCPacket)); - - /* send AFC packet header */ - AFCPacket_to_LE(client->afc_packet); - sent = 0; - iphone_device_send(client->connection, (void*)client->afc_packet, sizeof(AFCPacket), &sent); - if (sent == 0) { - return AFC_E_SUCCESS; - } - *bytes_sent += sent; - /* send AFC packet data (if there's data to send) */ - if (length > 0) { - debug_info("packet data follows"); - - debug_buffer(data, length); - iphone_device_send(client->connection, data, length, &sent); - *bytes_sent += sent; - } - return AFC_E_SUCCESS; - } - return AFC_E_INTERNAL_ERROR; -} - -/** Receives data through an AFC client and sets a variable to the received data. - * - * @param client The client to receive data on. - * @param dump_here The char* to point to the newly-received data. - * @param bytes_recv How much data was received. - * - * @return AFC_E_SUCCESS when data has been received, or an AFC_E_* error value - * when an error occured. - */ -static afc_error_t afc_receive_data(afc_client_t client, char **dump_here, uint32_t *bytes_recv) -{ - AFCPacket header; - uint32_t entire_len = 0; - uint32_t this_len = 0; - uint32_t current_count = 0; - uint64_t param1 = -1; - - *bytes_recv = 0; - - /* first, read the AFC header */ - iphone_device_recv(client->connection, (char*)&header, sizeof(AFCPacket), bytes_recv); - AFCPacket_from_LE(&header); - if (*bytes_recv == 0) { - debug_info("Just didn't get enough."); - *dump_here = NULL; - return AFC_E_MUX_ERROR; - } else if (*bytes_recv < sizeof(AFCPacket)) { - debug_info("Did not even get the AFCPacket header"); - *dump_here = NULL; - return AFC_E_MUX_ERROR; - } - - /* check if it's a valid AFC header */ - if (strncmp(header.magic, AFC_MAGIC, AFC_MAGIC_LEN)) { - debug_info("Invalid AFC packet received (magic != " AFC_MAGIC ")!"); - } - - /* check if it has the correct packet number */ - if (header.packet_num != client->afc_packet->packet_num) { - /* otherwise print a warning but do not abort */ - debug_info("ERROR: Unexpected packet number (%lld != %lld) aborting.", header.packet_num, client->afc_packet->packet_num); - *dump_here = NULL; - return AFC_E_OP_HEADER_INVALID; - } - - /* then, read the attached packet */ - if (header.this_length < sizeof(AFCPacket)) { - debug_info("Invalid AFCPacket header received!"); - *dump_here = NULL; - return AFC_E_OP_HEADER_INVALID; - } else if ((header.this_length == header.entire_length) - && header.entire_length == sizeof(AFCPacket)) { - debug_info("Empty AFCPacket received!"); - *dump_here = NULL; - *bytes_recv = 0; - if (header.operation == AFC_OP_DATA) { - return AFC_E_SUCCESS; - } else { - return AFC_E_IO_ERROR; - } - } - - debug_info("received AFC packet, full len=%lld, this len=%lld, operation=0x%llx", header.entire_length, header.this_length, header.operation); - - entire_len = (uint32_t)header.entire_length - sizeof(AFCPacket); - this_len = (uint32_t)header.this_length - sizeof(AFCPacket); - - /* this is here as a check (perhaps a different upper limit is good?) */ - if (entire_len > (uint32_t)MAXIMUM_PACKET_SIZE) { - fprintf(stderr, "%s: entire_len is larger than MAXIMUM_PACKET_SIZE, (%d > %d)!", __func__, entire_len, MAXIMUM_PACKET_SIZE); - } - - *dump_here = (char*)malloc(entire_len); - if (this_len > 0) { - iphone_device_recv(client->connection, *dump_here, this_len, bytes_recv); - if (*bytes_recv <= 0) { - free(*dump_here); - *dump_here = NULL; - debug_info("Did not get packet contents!"); - return AFC_E_NOT_ENOUGH_DATA; - } else if (*bytes_recv < this_len) { - free(*dump_here); - *dump_here = NULL; - debug_info("Could not receive this_len=%d bytes", this_len); - return AFC_E_NOT_ENOUGH_DATA; - } - } - - current_count = this_len; - - if (entire_len > this_len) { - while (current_count < entire_len) { - iphone_device_recv(client->connection, (*dump_here)+current_count, entire_len - current_count, bytes_recv); - if (*bytes_recv <= 0) { - debug_info("Error receiving data (recv returned %d)", *bytes_recv); - break; - } - current_count += *bytes_recv; - } - if (current_count < entire_len) { - debug_info("WARNING: could not receive full packet (read %s, size %d)", current_count, entire_len); - } - } - - if (current_count >= sizeof(uint64_t)) { - param1 = *(uint64_t*)(*dump_here); - } - - debug_info("packet data size = %i", current_count); - debug_info("packet data follows"); - debug_buffer(*dump_here, current_count); - - /* check operation types */ - if (header.operation == AFC_OP_STATUS) { - /* status response */ - debug_info("got a status response, code=%lld", param1); - - if (param1 != AFC_E_SUCCESS) { - /* error status */ - /* free buffer */ - free(*dump_here); - *dump_here = NULL; - return (afc_error_t)param1; - } - } else if (header.operation == AFC_OP_DATA) { - /* data response */ - debug_info("got a data response"); - } else if (header.operation == AFC_OP_FILE_OPEN_RES) { - /* file handle response */ - debug_info("got a file handle response, handle=%lld", param1); - } else if (header.operation == AFC_OP_FILE_TELL_RES) { - /* tell response */ - debug_info("got a tell response, position=%lld", param1); - } else { - /* unknown operation code received */ - free(*dump_here); - *dump_here = NULL; - *bytes_recv = 0; - - debug_info("WARNING: Unknown operation code received 0x%llx param1=%lld", header.operation, param1); - fprintf(stderr, "%s: WARNING: Unknown operation code received 0x%llx param1=%lld", __func__, (long long)header.operation, (long long)param1); - - return AFC_E_OP_NOT_SUPPORTED; - } - - *bytes_recv = current_count; - return AFC_E_SUCCESS; -} - -static uint32_t count_nullspaces(char *string, uint32_t number) -{ - uint32_t i = 0, nulls = 0; - - for (i = 0; i < number; i++) { - if (string[i] == '\0') - nulls++; - } - - return nulls; -} - -static char **make_strings_list(char *tokens, uint32_t true_length) -{ - uint32_t nulls = 0, i = 0, j = 0; - char **list = NULL; - - if (!tokens || !true_length) - return NULL; - - nulls = count_nullspaces(tokens, true_length); - list = (char **) malloc(sizeof(char *) * (nulls + 1)); - for (i = 0; i < nulls; i++) { - list[i] = strdup(tokens + j); - j += strlen(list[i]) + 1; - } - list[i] = NULL; - - return list; -} - -/** Gets a directory listing of the directory requested. - * - * @param client The client to get a directory listing from. - * @param dir The directory to list. (must be a fully-qualified path) - * - * @return A char ** list of files in that directory, terminated by an empty - * string for now or NULL if there was an error. - */ -afc_error_t afc_read_directory(afc_client_t client, const char *dir, char ***list) -{ - uint32_t bytes = 0; - char *data = NULL, **list_loc = NULL; - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client || !dir || !list || (list && *list)) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - // Send the command - client->afc_packet->operation = AFC_OP_READ_DIR; - client->afc_packet->entire_length = 0; - client->afc_packet->this_length = 0; - ret = afc_dispatch_packet(client, dir, strlen(dir)+1, &bytes); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - // Receive the data - ret = afc_receive_data(client, &data, &bytes); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return ret; - } - // Parse the data - list_loc = make_strings_list(data, bytes); - if (data) - free(data); - - afc_unlock(client); - *list = list_loc; - - return ret; -} - -/** Get device info for a client connection to phone. (free space on disk, etc.) - * - * @param client The client to get device info for. - * - * @return A char ** list of parameters as given by AFC or NULL if there was an - * error. - */ -afc_error_t afc_get_device_info(afc_client_t client, char ***infos) -{ - uint32_t bytes = 0; - char *data = NULL, **list = NULL; - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client || !infos) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - // Send the command - client->afc_packet->operation = AFC_OP_GET_DEVINFO; - client->afc_packet->entire_length = client->afc_packet->this_length = 0; - ret = afc_dispatch_packet(client, NULL, 0, &bytes); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - // Receive the data - ret = afc_receive_data(client, &data, &bytes); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return ret; - } - // Parse the data - list = make_strings_list(data, bytes); - if (data) - free(data); - - afc_unlock(client); - - *infos = list; - - return ret; -} - -/** Get a specific key of the device info list for a client connection. - * Known key values are: Model, FSTotalBytes, FSFreeBytes and FSBlockSize. - * This is a helper function for afc_get_device_info(). - * - * @param client The client to get device info for. - * @param key The key to get the value of. - * @param value The value for the key if successful or NULL otherwise. - * - * @return AFC_E_SUCCESS on success or an AFC_E_* error value. - */ -afc_error_t afc_get_device_info_key(afc_client_t client, const char *key, char **value) -{ - afc_error_t ret = AFC_E_INTERNAL_ERROR; - char **kvps, **ptr; - - *value = NULL; - if (key == NULL) - return AFC_E_INVALID_ARGUMENT; - - ret = afc_get_device_info(client, &kvps); - if (ret != AFC_E_SUCCESS) - return ret; - - for (ptr = kvps; *ptr; ptr++) { - if (!strcmp(*ptr, key)) { - *value = strdup(*(ptr+1)); - break; - } - } - - g_strfreev(kvps); - - return ret; -} - -/** Deletes a file or directory. - * - * @param client The client to use. - * @param path The path to delete. (must be a fully-qualified path) - * - * @return AFC_E_SUCCESS if everythong went well, AFC_E_INVALID_ARGUMENT - * if arguments are NULL or invalid, AFC_E_NOT_ENOUGH_DATA otherwise. - */ -afc_error_t afc_remove_path(afc_client_t client, const char *path) -{ - char *response = NULL; - uint32_t bytes = 0; - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client || !path || !client->afc_packet || !client->connection) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - // Send command - client->afc_packet->this_length = client->afc_packet->entire_length = 0; - client->afc_packet->operation = AFC_OP_REMOVE_PATH; - ret = afc_dispatch_packet(client, path, strlen(path)+1, &bytes); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - // Receive response - ret = afc_receive_data(client, &response, &bytes); - if (response) - free(response); - - /* special case; unknown error actually means directory not empty */ - if (ret == AFC_E_UNKNOWN_ERROR) - ret = AFC_E_DIR_NOT_EMPTY; - - afc_unlock(client); - - return ret; -} - -/** Renames a file or directory on the phone. - * - * @param client The client to have rename. - * @param from The name to rename from. (must be a fully-qualified path) - * @param to The new name. (must also be a fully-qualified path) - * - * @return AFC_E_SUCCESS if everythong went well, AFC_E_INVALID_ARGUMENT - * if arguments are NULL or invalid, AFC_E_NOT_ENOUGH_DATA otherwise. - */ -afc_error_t afc_rename_path(afc_client_t client, const char *from, const char *to) -{ - char *response = NULL; - char *send = (char *) malloc(sizeof(char) * (strlen(from) + strlen(to) + 1 + sizeof(uint32_t))); - uint32_t bytes = 0; - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client || !from || !to || !client->afc_packet || !client->connection) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - // Send command - memcpy(send, from, strlen(from) + 1); - memcpy(send + strlen(from) + 1, to, strlen(to) + 1); - client->afc_packet->entire_length = client->afc_packet->this_length = 0; - client->afc_packet->operation = AFC_OP_RENAME_PATH; - ret = afc_dispatch_packet(client, send, strlen(to)+1 + strlen(from)+1, &bytes); - free(send); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - // Receive response - ret = afc_receive_data(client, &response, &bytes); - if (response) - free(response); - - afc_unlock(client); - - return ret; -} - -/** Creates a directory on the phone. - * - * @param client The client to use to make a directory. - * @param dir The directory's path. (must be a fully-qualified path, I assume - * all other mkdir restrictions apply as well) - * - * @return AFC_E_SUCCESS if everythong went well, AFC_E_INVALID_ARGUMENT - * if arguments are NULL or invalid, AFC_E_NOT_ENOUGH_DATA otherwise. - */ -afc_error_t afc_make_directory(afc_client_t client, const char *dir) -{ - uint32_t bytes = 0; - char *response = NULL; - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - // Send command - client->afc_packet->operation = AFC_OP_MAKE_DIR; - client->afc_packet->this_length = client->afc_packet->entire_length = 0; - ret = afc_dispatch_packet(client, dir, strlen(dir)+1, &bytes); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - // Receive response - ret = afc_receive_data(client, &response, &bytes); - if (response) - free(response); - - afc_unlock(client); - - return ret; -} - -/** Gets information about a specific file. - * - * @param client The client to use to get the information of the file. - * @param path The fully-qualified path to the file. - * @param infolist Pointer to a buffer that will be filled with a NULL-terminated - * list of strings with the file information. - * Set to NULL before calling this function. - * - * @return AFC_E_SUCCESS on success or an AFC_E_* error value - * when something went wrong. - */ -afc_error_t afc_get_file_info(afc_client_t client, const char *path, char ***infolist) -{ - char *received = NULL; - uint32_t bytes = 0; - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client || !path || !infolist) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - // Send command - client->afc_packet->operation = AFC_OP_GET_FILE_INFO; - client->afc_packet->entire_length = client->afc_packet->this_length = 0; - ret = afc_dispatch_packet(client, path, strlen(path)+1, &bytes); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - - // Receive data - ret = afc_receive_data(client, &received, &bytes); - if (received) { - *infolist = make_strings_list(received, bytes); - free(received); - } - - afc_unlock(client); - - return ret; -} - -/** Opens a file on the phone. - * - * @param client The client to use to open the file. - * @param filename The file to open. (must be a fully-qualified path) - * @param file_mode The mode to use to open the file. Can be AFC_FILE_READ or - * AFC_FILE_WRITE; the former lets you read and write, - * however, and the second one will *create* the file, - * destroying anything previously there. - * @param handle Pointer to a uint64_t that will hold the handle of the file - * - * @return AFC_E_SUCCESS on success or an AFC_E_* error on failure. - */ -iphone_error_t -afc_file_open(afc_client_t client, const char *filename, - afc_file_mode_t file_mode, uint64_t *handle) -{ - uint64_t file_mode_loc = GUINT64_TO_LE(file_mode); - uint32_t bytes = 0; - char *data = (char *) malloc(sizeof(char) * (8 + strlen(filename) + 1)); - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - // set handle to 0 so in case an error occurs, the handle is invalid - *handle = 0; - - if (!client || !client->connection || !client->afc_packet) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - // Send command - memcpy(data, &file_mode_loc, 8); - memcpy(data + 8, filename, strlen(filename)); - data[8 + strlen(filename)] = '\0'; - client->afc_packet->operation = AFC_OP_FILE_OPEN; - client->afc_packet->entire_length = client->afc_packet->this_length = 0; - ret = afc_dispatch_packet(client, data, 8 + strlen(filename) + 1, &bytes); - free(data); - - if (ret != AFC_E_SUCCESS) { - debug_info("Didn't receive a response to the command"); - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - // Receive the data - ret = afc_receive_data(client, &data, &bytes); - if ((ret == AFC_E_SUCCESS) && (bytes > 0) && data) { - afc_unlock(client); - - // Get the file handle - memcpy(handle, data, sizeof(uint64_t)); - free(data); - return ret; - } - - debug_info("Didn't get any further data"); - - afc_unlock(client); - - return ret; -} - -/** Attempts to the read the given number of bytes from the given file. - * - * @param client The relevant AFC client - * @param handle File handle of a previously opened file - * @param data The pointer to the memory region to store the read data - * @param length The number of bytes to read - * @param bytes_read The number of bytes actually read. - * - * @return AFC_E_SUCCESS on success or an AFC_E_* error value on error. - */ -iphone_error_t -afc_file_read(afc_client_t client, uint64_t handle, char *data, uint32_t length, uint32_t *bytes_read) -{ - char *input = NULL; - uint32_t current_count = 0, bytes_loc = 0; - const uint32_t MAXIMUM_READ_SIZE = 1 << 16; - afc_error_t ret = AFC_E_SUCCESS; - - if (!client || !client->afc_packet || !client->connection || handle == 0) - return AFC_E_INVALID_ARGUMENT; - debug_info("called for length %i", length); - - afc_lock(client); - - // Looping here to get around the maximum amount of data that - // afc_receive_data can handle - while (current_count < length) { - debug_info("current count is %i but length is %i", current_count, length); - - // Send the read command - AFCFilePacket *packet = (AFCFilePacket *) malloc(sizeof(AFCFilePacket)); - packet->filehandle = handle; - packet->size = GUINT64_TO_LE(((length - current_count) < MAXIMUM_READ_SIZE) ? (length - current_count) : MAXIMUM_READ_SIZE); - client->afc_packet->operation = AFC_OP_READ; - client->afc_packet->entire_length = client->afc_packet->this_length = 0; - ret = afc_dispatch_packet(client, (char *) packet, sizeof(AFCFilePacket), &bytes_loc); - free(packet); - - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - // Receive the data - ret = afc_receive_data(client, &input, &bytes_loc); - debug_info("afc_receive_data returned error: %d", ret); - debug_info("bytes returned: %i", bytes_loc); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return ret; - } else if (bytes_loc == 0) { - if (input) - free(input); - afc_unlock(client); - *bytes_read = current_count; - /* FIXME: check that's actually a success */ - return ret; - } else { - if (input) { - debug_info("%d", bytes_loc); - memcpy(data + current_count, input, (bytes_loc > length) ? length : bytes_loc); - free(input); - input = NULL; - current_count += (bytes_loc > length) ? length : bytes_loc; - } - } - } - debug_info("returning current_count as %i", current_count); - - afc_unlock(client); - *bytes_read = current_count; - return ret; -} - -/** Writes a given number of bytes to a file. - * - * @param client The client to use to write to the file. - * @param handle File handle of previously opened file. - * @param data The data to write to the file. - * @param length How much data to write. - * @param bytes_written The number of bytes actually written to the file. - * - * @return AFC_E_SUCCESS on success, or an AFC_E_* error value on error. - */ -iphone_error_t -afc_file_write(afc_client_t client, uint64_t handle, const char *data, uint32_t length, uint32_t *bytes_written) -{ - char *acknowledgement = NULL; - const uint32_t MAXIMUM_WRITE_SIZE = 1 << 15; - uint32_t current_count = 0, i = 0; - uint32_t segments = (length / MAXIMUM_WRITE_SIZE); - uint32_t bytes_loc = 0; - char *out_buffer = NULL; - afc_error_t ret = AFC_E_SUCCESS; - - if (!client || !client->afc_packet || !client->connection || !bytes_written || (handle == 0)) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - debug_info("Write length: %i", length); - - // Divide the file into segments. - for (i = 0; i < segments; i++) { - // Send the segment - client->afc_packet->this_length = sizeof(AFCPacket) + 8; - client->afc_packet->entire_length = client->afc_packet->this_length + MAXIMUM_WRITE_SIZE; - client->afc_packet->operation = AFC_OP_WRITE; - out_buffer = (char *) malloc(sizeof(char) * client->afc_packet->entire_length - sizeof(AFCPacket)); - memcpy(out_buffer, (char *)&handle, sizeof(uint64_t)); - memcpy(out_buffer + 8, data + current_count, MAXIMUM_WRITE_SIZE); - ret = afc_dispatch_packet(client, out_buffer, MAXIMUM_WRITE_SIZE + 8, &bytes_loc); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - free(out_buffer); - out_buffer = NULL; - - current_count += bytes_loc; - ret = afc_receive_data(client, &acknowledgement, &bytes_loc); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return ret; - } else { - free(acknowledgement); - } - } - - // By this point, we should be at the end. i.e. the last segment that - // didn't get sent in the for loop - // this length is fine because it's always sizeof(AFCPacket) + 8, but - // to be sure we do it again - if (current_count == length) { - afc_unlock(client); - *bytes_written = current_count; - return ret; - } - - client->afc_packet->this_length = sizeof(AFCPacket) + 8; - client->afc_packet->entire_length = client->afc_packet->this_length + (length - current_count); - client->afc_packet->operation = AFC_OP_WRITE; - out_buffer = (char *) malloc(sizeof(char) * client->afc_packet->entire_length - sizeof(AFCPacket)); - memcpy(out_buffer, (char *) &handle, sizeof(uint64_t)); - memcpy(out_buffer + 8, data + current_count, (length - current_count)); - ret = afc_dispatch_packet(client, out_buffer, (length - current_count) + 8, &bytes_loc); - free(out_buffer); - out_buffer = NULL; - - current_count += bytes_loc; - - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - *bytes_written = current_count; - return AFC_E_SUCCESS; - } - - ret = afc_receive_data(client, &acknowledgement, &bytes_loc); - afc_unlock(client); - if (ret != AFC_E_SUCCESS) { - debug_info("uh oh?"); - } else { - free(acknowledgement); - } - *bytes_written = current_count; - return ret; -} - -/** Closes a file on the phone. - * - * @param client The client to close the file with. - * @param handle File handle of a previously opened file. - */ -afc_error_t afc_file_close(afc_client_t client, uint64_t handle) -{ - char *buffer = malloc(sizeof(char) * 8); - uint32_t bytes = 0; - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client || (handle == 0)) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - debug_info("File handle %i", handle); - - // Send command - memcpy(buffer, &handle, sizeof(uint64_t)); - client->afc_packet->operation = AFC_OP_FILE_CLOSE; - client->afc_packet->entire_length = client->afc_packet->this_length = 0; - ret = afc_dispatch_packet(client, buffer, 8, &bytes); - free(buffer); - buffer = NULL; - - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_UNKNOWN_ERROR; - } - - // Receive the response - ret = afc_receive_data(client, &buffer, &bytes); - if (buffer) - free(buffer); - - afc_unlock(client); - - return ret; -} - -/** Locks or unlocks a file on the phone. - * - * makes use of flock on the device, see - * http://developer.apple.com/documentation/Darwin/Reference/ManPages/man2/flock.2.html - * - * @param client The client to lock the file with. - * @param handle File handle of a previously opened file. - * @param operation the lock or unlock operation to perform, this is one of - * AFC_LOCK_SH (shared lock), AFC_LOCK_EX (exclusive lock), - * or AFC_LOCK_UN (unlock). - */ -afc_error_t afc_file_lock(afc_client_t client, uint64_t handle, afc_lock_op_t operation) -{ - char *buffer = malloc(16); - uint32_t bytes = 0; - uint64_t op = GUINT64_TO_LE(operation); - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client || (handle == 0)) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - debug_info("file handle %i", handle); - - // Send command - memcpy(buffer, &handle, sizeof(uint64_t)); - memcpy(buffer + 8, &op, 8); - - client->afc_packet->operation = AFC_OP_FILE_LOCK; - client->afc_packet->entire_length = client->afc_packet->this_length = 0; - ret = afc_dispatch_packet(client, buffer, 16, &bytes); - free(buffer); - buffer = NULL; - - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - debug_info("could not send lock command"); - return AFC_E_UNKNOWN_ERROR; - } - // Receive the response - ret = afc_receive_data(client, &buffer, &bytes); - if (buffer) { - debug_buffer(buffer, bytes); - free(buffer); - } - afc_unlock(client); - - return ret; -} - -/** Seeks to a given position of a pre-opened file on the phone. - * - * @param client The client to use to seek to the position. - * @param handle File handle of a previously opened. - * @param offset Seek offset. - * @param whence Seeking direction, one of SEEK_SET, SEEK_CUR, or SEEK_END. - * - * @return AFC_E_SUCCESS on success, AFC_E_NOT_ENOUGH_DATA on failure. - */ -afc_error_t afc_file_seek(afc_client_t client, uint64_t handle, int64_t offset, int whence) -{ - char *buffer = (char *) malloc(sizeof(char) * 24); - int64_t offset_loc = (int64_t)GUINT64_TO_LE(offset); - uint64_t whence_loc = GUINT64_TO_LE(whence); - uint32_t bytes = 0; - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client || (handle == 0)) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - // Send the command - memcpy(buffer, &handle, sizeof(uint64_t)); // handle - memcpy(buffer + 8, &whence_loc, sizeof(uint64_t)); // fromwhere - memcpy(buffer + 16, &offset_loc, sizeof(uint64_t)); // offset - client->afc_packet->operation = AFC_OP_FILE_SEEK; - client->afc_packet->this_length = client->afc_packet->entire_length = 0; - ret = afc_dispatch_packet(client, buffer, 24, &bytes); - free(buffer); - buffer = NULL; - - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - // Receive response - ret = afc_receive_data(client, &buffer, &bytes); - if (buffer) - free(buffer); - - afc_unlock(client); - - return ret; -} - -/** Returns current position in a pre-opened file on the phone. - * - * @param client The client to use. - * @param handle File handle of a previously opened file. - * @param position Position in bytes of indicator - * - * @return AFC_E_SUCCESS on success, AFC_E_NOT_ENOUGH_DATA on failure. - */ -afc_error_t afc_file_tell(afc_client_t client, uint64_t handle, uint64_t *position) -{ - char *buffer = (char *) malloc(sizeof(char) * 8); - uint32_t bytes = 0; - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client || (handle == 0)) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - // Send the command - memcpy(buffer, &handle, sizeof(uint64_t)); // handle - client->afc_packet->operation = AFC_OP_FILE_TELL; - client->afc_packet->this_length = client->afc_packet->entire_length = 0; - ret = afc_dispatch_packet(client, buffer, 8, &bytes); - free(buffer); - buffer = NULL; - - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - - // Receive the data - ret = afc_receive_data(client, &buffer, &bytes); - if (bytes > 0 && buffer) { - /* Get the position */ - memcpy(position, buffer, sizeof(uint64_t)); - *position = GUINT64_FROM_LE(*position); - } - if (buffer) - free(buffer); - - afc_unlock(client); - - return ret; -} - -/** Sets the size of a file on the phone. - * - * @param client The client to use to set the file size. - * @param handle File handle of a previously opened file. - * @param newsize The size to set the file to. - * - * @return 0 on success, -1 on failure. - * - * @note This function is more akin to ftruncate than truncate, and truncate - * calls would have to open the file before calling this, sadly. - */ -afc_error_t afc_file_truncate(afc_client_t client, uint64_t handle, uint64_t newsize) -{ - char *buffer = (char *) malloc(sizeof(char) * 16); - uint32_t bytes = 0; - uint64_t newsize_loc = GUINT64_TO_LE(newsize); - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client || (handle == 0)) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - // Send command - memcpy(buffer, &handle, sizeof(uint64_t)); // handle - memcpy(buffer + 8, &newsize_loc, sizeof(uint64_t)); // newsize - client->afc_packet->operation = AFC_OP_FILE_SET_SIZE; - client->afc_packet->this_length = client->afc_packet->entire_length = 0; - ret = afc_dispatch_packet(client, buffer, 16, &bytes); - free(buffer); - buffer = NULL; - - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - // Receive response - ret = afc_receive_data(client, &buffer, &bytes); - if (buffer) - free(buffer); - - afc_unlock(client); - - return ret; -} - -/** Sets the size of a file on the phone without prior opening it. - * - * @param client The client to use to set the file size. - * @param path The path of the file to be truncated. - * @param newsize The size to set the file to. - * - * @return AFC_E_SUCCESS if everything went well, AFC_E_INVALID_ARGUMENT - * if arguments are NULL or invalid, AFC_E_NOT_ENOUGH_DATA otherwise. - */ -afc_error_t afc_truncate(afc_client_t client, const char *path, uint64_t newsize) -{ - char *response = NULL; - char *send = (char *) malloc(sizeof(char) * (strlen(path) + 1 + 8)); - uint32_t bytes = 0; - uint64_t size_requested = GUINT64_TO_LE(newsize); - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client || !path || !client->afc_packet || !client->connection) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - // Send command - memcpy(send, &size_requested, 8); - memcpy(send + 8, path, strlen(path) + 1); - client->afc_packet->entire_length = client->afc_packet->this_length = 0; - client->afc_packet->operation = AFC_OP_TRUNCATE; - ret = afc_dispatch_packet(client, send, 8 + strlen(path) + 1, &bytes); - free(send); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - // Receive response - ret = afc_receive_data(client, &response, &bytes); - if (response) - free(response); - - afc_unlock(client); - - return ret; -} - -/** Creates a hard link or symbolic link on the device. - * - * @param client The client to use for making a link - * @param type 1 = hard link, 2 = symlink - * @param target The file to be linked. - * @param linkname The name of link. - * - * @return AFC_E_SUCCESS if everything went well, AFC_E_INVALID_ARGUMENT - * if arguments are NULL or invalid, AFC_E_NOT_ENOUGH_DATA otherwise. - */ -afc_error_t afc_make_link(afc_client_t client, afc_link_type_t linktype, const char *target, const char *linkname) -{ - char *response = NULL; - char *send = (char *) malloc(sizeof(char) * (strlen(target)+1 + strlen(linkname)+1 + 8)); - uint32_t bytes = 0; - uint64_t type = GUINT64_TO_LE(linktype); - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client || !target || !linkname || !client->afc_packet || !client->connection) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - debug_info("link type: %lld", type); - debug_info("target: %s, length:%d", target, strlen(target)); - debug_info("linkname: %s, length:%d", linkname, strlen(linkname)); - - // Send command - memcpy(send, &type, 8); - memcpy(send + 8, target, strlen(target) + 1); - memcpy(send + 8 + strlen(target) + 1, linkname, strlen(linkname) + 1); - client->afc_packet->entire_length = client->afc_packet->this_length = 0; - client->afc_packet->operation = AFC_OP_MAKE_LINK; - ret = afc_dispatch_packet(client, send, 8 + strlen(linkname) + 1 + strlen(target) + 1, &bytes); - free(send); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - // Receive response - ret = afc_receive_data(client, &response, &bytes); - if (response) - free(response); - - afc_unlock(client); - - return ret; -} - -/** Sets the modification time of a file on the phone. - * - * @param client The client to use to set the file size. - * @param path Path of the file for which the modification time should be set. - * @param mtime The modification time to set in nanoseconds since epoch. - * - * @return AFC_E_SUCCESS if everything went well, AFC_E_INVALID_ARGUMENT - * if arguments are NULL or invalid, AFC_E_NOT_ENOUGH_DATA otherwise. - */ -afc_error_t afc_set_file_time(afc_client_t client, const char *path, uint64_t mtime) -{ - char *response = NULL; - char *send = (char *) malloc(sizeof(char) * (strlen(path) + 1 + 8)); - uint32_t bytes = 0; - uint64_t mtime_loc = GUINT64_TO_LE(mtime); - afc_error_t ret = AFC_E_UNKNOWN_ERROR; - - if (!client || !path || !client->afc_packet || !client->connection) - return AFC_E_INVALID_ARGUMENT; - - afc_lock(client); - - // Send command - memcpy(send, &mtime_loc, 8); - memcpy(send + 8, path, strlen(path) + 1); - client->afc_packet->entire_length = client->afc_packet->this_length = 0; - client->afc_packet->operation = AFC_OP_SET_FILE_TIME; - ret = afc_dispatch_packet(client, send, 8 + strlen(path) + 1, &bytes); - free(send); - if (ret != AFC_E_SUCCESS) { - afc_unlock(client); - return AFC_E_NOT_ENOUGH_DATA; - } - // Receive response - ret = afc_receive_data(client, &response, &bytes); - if (response) - free(response); - - afc_unlock(client); - - return ret; -} - |